I send fixed len. strings from vb, and it doesn't matter where I put dummy variable. I try to to add dummy after mail_pass, and again everything it's ok. So now I don't have clue what it is happening...
I have 661 byte 2 words and 4bits before Mail_user.
And if I swap place of Mail_Pass and any array, _pass is ok, and that replaced array isn't ok...